Canreef Aquatics Bulletin Board  

Go Back   Canreef Aquatics Bulletin Board > General > Reef

Reply
 
Thread Tools Display Modes
  #1  
Old 12-08-2013, 09:21 PM
Madreefer's Avatar
Madreefer Madreefer is offline
Member
 
Join Date: Nov 2008
Location: Prince George
Posts: 2,064
Madreefer is on a distinguished road
Default Calibrating Refractometer

What are you people using for sloution to recalibrate your refractormeters?
Reply With Quote
  #2  
Old 12-08-2013, 09:52 PM
wayner's Avatar
wayner wayner is offline
Member
 
Join Date: Jan 2002
Location: Calgary, McKenzie Towne SE
Posts: 634
wayner is on a distinguished road
Default

Pinpoint Calibration Fluid 53.0 mS

The only thing I'll ever used
Reply With Quote
  #3  
Old 12-08-2013, 09:53 PM
SteveCGY SteveCGY is offline
Member
 
Join Date: Nov 2013
Location: Calgary
Posts: 201
SteveCGY is on a distinguished road
Default

Quote:
Originally Posted by wayner View Post
Pinpoint Calibration Fluid 53.0 mS

The only thing I'll ever used
Where can I get this in the south? I'm in cranston
Reply With Quote
  #4  
Old 12-08-2013, 09:53 PM
wayner's Avatar
wayner wayner is offline
Member
 
Join Date: Jan 2002
Location: Calgary, McKenzie Towne SE
Posts: 634
wayner is on a distinguished road
Default

Pinpoint Calibration Fluid 53.0 mS

The only thing I'll ever use
Reply With Quote
  #5  
Old 12-08-2013, 09:58 PM
gregzz4's Avatar
gregzz4 gregzz4 is offline
On Hiatus
 
Join Date: Oct 2011
Location: Burnaby, B.C.
Posts: 4,890
gregzz4 will become famous soon enough
Default

Any brand with 35ppt is good enough for me
I follow the 45 seconds instructions with my ATC
Reply With Quote
  #6  
Old 12-08-2013, 10:16 PM
jason604 jason604 is offline
Member
 
Join Date: Mar 2013
Location: vancouver
Posts: 784
jason604 is on a distinguished road
Default

I just use 0ppm rodi water. Dunno if that's the right thing to do but hey it's working n free!!! Lol
Reply With Quote
  #7  
Old 12-08-2013, 10:18 PM
seasalt_newbies's Avatar
seasalt_newbies seasalt_newbies is offline
Junior Member
 
Join Date: Sep 2013
Location: Stony Plain
Posts: 21
seasalt_newbies is on a distinguished road
Default

what 45 sec instructions are you talking about ?
Reply With Quote
  #8  
Old 12-08-2013, 10:28 PM
gregzz4's Avatar
gregzz4 gregzz4 is offline
On Hiatus
 
Join Date: Oct 2011
Location: Burnaby, B.C.
Posts: 4,890
gregzz4 will become famous soon enough
Default

Quote:
Originally Posted by seasalt_newbies View Post
what 45 sec instructions are you talking about ?
I have a bottle of Aqua Craft Products, and it states to "Place a few drops of Refractometer Calibration Solution on refractometer prism slide.
Allow 45 seconds if ATC refractometer is used."

My refractometer instructions state this time delay allows the solution to adjust to the ambient temp of the unit. But my unit and solution are kept in the same room - whatever
My instructions also state to cal the unit at 68F. Something to do with it being an ATC unit. Then it is accurate with an ambient shift of 10-30C
So I cal my unit in the basement as it's cooler down there than my 74F upstairs
To each his/her own ...
Reply With Quote
  #9  
Old 12-08-2013, 10:34 PM
ashr's Avatar
ashr ashr is offline
Member
 
Join Date: Nov 2011
Location: Lake Country, BC
Posts: 529
ashr is on a distinguished road
Default

Quote:
Originally Posted by jason604 View Post
I just use 0ppm rodi water. Dunno if that's the right thing to do but hey it's working n free!!! Lol
This is what I do.. I hope it works haha
__________________
Ashr
Red Sea Max 250, 66g Mixed Reef

Ashr's Tank Journal
Reply With Quote
  #10  
Old 12-08-2013, 10:36 PM
Stones's Avatar
Stones Stones is offline
Member
 
Join Date: Jan 2006
Location: Regina, Saskatchewan
Posts: 401
Stones is on a distinguished road
Default

Quote:
Originally Posted by jason604 View Post
I just use 0ppm rodi water. Dunno if that's the right thing to do but hey it's working n free!!! Lol
I used to do this as well but it is much better to calibrate with a known 35 ppt solution such as the pinpoint one listed above.

Using 0 ppm RODI water to calibrate my refractometer, my salinity was acutally at 1.028 when the refractometer was reading 1.025. Didn't know this until after I had used the pinpoint solution to calibrate.
__________________
Do or do not....there is no try.
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT. The time now is 11:22 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.